Nuno Espirito Santo was left baffled and said it was “hard to explain” why Wolves slipped to their second defeat of the season to struggling Huddersfield.
The Terriers had not tasted victory in a Premier League match since November 25 when Wolves were dispatched 2-1 at Molineux and despite their strong form against the top teams, Wolves have been vulnerable against teams battling relegation.
Along with losing twice to Huddersfield, Nuno's team have suffered defeats at Cardiff and Brighton while also drawing with Fulham.
"It's very hard to explain," Nuno said.
"You prepare well, do the same things, the motivation is there, sometimes things don't work out.
"You lose a couple of passes, you lack concentration, but it doesn't have to do with if we play a small or big team, for us it's no difference in our opponents, we always try to approach the same way. So it's very hard to answer that question."
Wolves failed to register a shot on target against the Premier League's bottom side.
Nuno admitted his team deserved little from the game and must put it right against Cardiff on Saturday.
He added: "In the first half we weren't able to play. We rushed too much. There was no fight. It wasn't one of the best performances.
"It was one moment on the counter-attack where we lost the ball. We cannot, until the referee says it's over, it is not over.
"We must look at the next one. We have to improve. We have a tough game at Molineux now."